yes u can hide ur folder without any software !!!
here is the steps:
1- right click the folder
2- click 'rename'
3- then type alt+255{type 255 in numpad placed in the right side only}
4- then enter
5- now right click on the folder again
6- then click 'properties'
7- in it click on 'costomize'
8- click 'change icon'
9-now select a blank icon from the box appeared and click 'ok'
10- click 'apply' then 'ok'
now itz all done ! ur folder is hided safely now , this folder cannot be viewed even when hiden file search is done !!
u can find the folder by clicking on the place u created the folder or just drag over the page and find ur folder . .

Did u ever tried to rename a file/folder to blank ??? if u triyed surely you came to know that u cannot make a file/folder without giving a letter , even a dot is needed . .
but now iam telling u a simple trick to put any file/folder name as blank !
just check this out .
click rename in file/folder
then click alt+255{type 255 in numpad placed in the right side only}
then click enter <<< thatz it !!! ur file/folder remains without any name !!!!